Ratios, Rates, & Unit Rates

Front

What is a ratio?

Back

A ratio is a comparison of two quantities that shows the relative size of one quantity to another, often expressed as 'a:b'.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common divisor (GCD).

Front

What is a rate?

Back

A rate is a specific kind of ratio that compares two different units, such as speed (miles per hour) or price (cost per item).

Front

What is a unit rate?

Back

A unit rate is a rate in which the second quantity is one unit, such as dollars per pound or miles per hour.

Front

If 3 cakes require 6 eggs, how many eggs are needed for 7 cakes?

Back

14 eggs.

Front

What is the unit rate if 4 pounds of apples cost $8?

Back

$2 per pound.

Front

What is the ratio of 15 to 25 in simplest form?

Back

3:5.

Front

If a car travels 120 miles in 2 hours, what is its speed in miles per hour?

Back

60 miles per hour.

Front

What is the ratio of 10 oranges to 5 apples?

Back

2:1.

Front

If a recipe calls for 2 cups of flour for every 3 cups of sugar, what is the ratio of flour to sugar?

Back

2:3.